Objective To establish a differential model of phlegm and blood stasis pattern and qi deficiency and blood stasis pattern in stable angina pectoris using radiomics.Methods A total of 91 patients with stable angina pectoris who underwent coronary artery CT angiography in Affiliated Hospital of Liaoning University of Traditional Chinese Medicine from January 2021 to January 2022 were collected,including 47 cases of phlegm and blood stasis pattern and 44 cases of qi deficiency and blood stasis pattern.The patients were divided into train set(64 cases)and test set(27 cases)according to the ratio of 7∶3 by stratified random sampling method.3D-slicer software was used to extract the radiomics features of pericoronary adipose tissue(PCAT)images.Principal component analysis was used to visualize the distribution of radiomics features of pattern of phlegm and blood stasis and pattern of qi deficiency and blood stasis.The least absolute shrinkage and selection operator regression analysis and support vector machine decreasing feature elimination were used for feature selection.The multinomial logistics regression was used for model construction.The receiver operating characteristic(ROC)curve was used to verify the model in the train set and the test set to evaluate the effectiveness of the radiomics features in differentiating phlegm and blood stasis pattern and qi deficiency and blood stasis pattern.Finally,Spearman coefficient was used to analyze the correlation between the differential features and clinical physicochemical data.Results A total of 837 radiomics features were extracted from PCAT images by 3D-slicer software.In the principal component analysis,PC1 and PC2 explained 77.9%and 8.1%of the total variance,respectively,and there was a relatively obvious separation trend between the two pattern groups.After feature screening,7 radiomics features were used to construct the differential model of phlegm and blood stasis pattern and qi deficiency and blood stasis pattern.The area under the ROC curve(AUC)of the differential model was 0.844 in the train set and 0.834 in the test set.Spearman correlation analysis showed that the differential features were significantly correlated with cTnI,neutrophil,triglyceride,total cholesterol,and leukocyte.Conclusion The CT radiomics model based on PCAT has a high discrimination efficiency for stable angina pectoris with phlegm and blood stasis pattern and qi deficiency and blood stasis pattern.

Alzheimer's disease(AD)is the most common form of senile dementia,and its pathogenesis is still un-clear.While β-amyloid(Aβ)is considered an important cause of AD,the pathological mechanism of Aβ inducing AD is subject to various controversies.Recent studies have shown that the myeloid cell trigger receptor(TREM2)plays an impor-tant role in the pathological process of AD,and it can not only serve as an important receptor for the internalization of Aβ but also become a biological diagnostic biomarker and therapeutic target.Hence,elucidating the structure and function of TREM2 will provide important ideas for the prevention and treatment of AD.This article will provide a systematic review of the structure of TREM2,its impact on microglial cell function,its pathological role in AD,and the current status of target-ed TREM2 therapy for AD.These summaries will provide valuable references for basic research on AD.

Objective To investigate the antibacterial performance and biocompatibility of silver nanoparticles-coated root canal nickel titanium instruments(AgNPs-NiTi).Methods AgNPs-NiTi was prepared using pulse electrochemical deposition.The morphol-ogy of AgNPs-NiTi was observed using field emission scanning electron microscopy(FE-SEM),and the elemental composition and con-tent were analyzed using X-ray diffraction(XRD)and energy dispersive spectroscopy(EDS).The mechanical properties of AgNPs-NiTi were tested.After Co-culturing AgNPs-NiTi with E.faecalis,the antibacterial effect was detected by colony-forming units method.By constructing an in vitro model of E.faecalis biofilm in the root canal of teeth,the antibacterial effect of AgNPs-NiTi was observed using FE-SEM and live/dead bacterial staining.In addition,AgNPs-NiTi was co-cultured with Raw 264.7 cells,and its cytotoxicity was de-tected by CCK-8.Results The pulse electrochemical deposition was used to construct a silver nanoparticle(AgNPs)coating on NiTi instruments with no significant change in the mechanical properties.AgNPs-NiTi significantly inhibited the proliferation of E.faecalis and damaged E.faecalis biofilm in the root canal.AgNPs-NiTi had no significant influence on the proliferation of Raw264.7 cells and had no cytotoxicity.Conclusion The mechanical properties of AgNPs-NiTi are similar to those of nickel titanium instruments.AgNPs-NiTi inhibits E.faecalis proliferation with good biocompatibility.

Objective:To summarize the content and effects of exercise interventions for stroke survivors, providing references for medical and nursing personnel in formulating exercise intervention plans for these patients.Methods:Literature on exercise interventions for stroke survivors was searched in databases such as China National Knowledge Infrastructure, Wanfang, VIP, China Biology Medicine disc, Cochrane Library, PubMed, Embase, and Web of Science up to May 1, 2023. Data extraction and summarization were conducted on the included literature.Results:Twenty-two articles were included in the review. The exercise types for stroke survivors primarily involved aerobic and resistance training; the intensity was mainly moderate to high; the frequency was mostly 3-5 times per week, with each session lasting 30-60 minutes; and the duration of interventions ranged from as short as two weeks to as long as one year. Exercise interventions improved stroke survivors' functional mobility, quality of life, cardiopulmonary function, mental state, cognitive function, fatigue, sleep, and compliance to varying degrees.Conclusions:Exercise interventions have achieved positive outcomes in stroke survivors. In the future, medical and nursing personnel can incorporate patient preferences into exercise intervention plans while ensuring patient safety to promote rehabilitation.

Objective:To conduct an overview of systematic reviews on the safety and effectiveness of early mobilization in stroke patients.Methods:Systematic reviews of early mobilization in stroke were electronically searched on China National Knowledge Infrastructure, WanFang Data, VIP, Chinese Biology Medicine, Cochrane Library, PubMed, Web of Science, CINAHL, Embase, and the Joanna Briggs Institute Evidence-Based Health Care Center Database. The search period was from database establishment to May 2023. Two researchers independently conducted literature screening, data extraction, and methodological quality evaluation of the included literature, as well as evidence summary and grading.Results:A total of 10 systematic reviews were included. The methodological quality evaluation showed that one article was of medium quality, two articles were of low quality, and seven articles were of extremely low quality. The evidence quality evaluation indicated that there were three pieces of high-quality evidence, 17 pieces of medium-quality evidence, 21 pieces of low-quality evidence, and 17 pieces of extremely low-quality evidence.Conclusions:Early mobilization is beneficial for improving the daily living ability and limb motor function of stroke patients, reducing the incidence of complications, shortening hospital stay, and enhancing their walking ability in the short term. However, the quality of evidence in the systematic review is relatively low, and further improvement is needed in the research design of early mobilization intervention measures to provide strong support for clinical practice.

Objective:To compare the clinical value of digital breast tomosynthesis (DBT) localization and stereotactic positioning biopsy of breast lesions.Methods:This study was a cross-sectional study. Totally of 250 patients who underwent breast biopsy at Shenzhen People′s Hospital, Luohu District People′s Hospital and Peking University Shenzhen Hospital between August 2021 to October 2023 was analyzed retrospectively, including 136 cases of DBT-guided biopsy (DBT-guided group) and 114 cases of stereotactic-guided biopsy (stereotactic-guided group). The stereotactic-guided biopsy methods included core needle biopsy (CNB) and wire positioning. The DBT-guided biopsy methods included CNB, wire positioning and vacuum-assisted breast biopsy (VABB). The χ2 test or Mann-Whitney U test was used to compare the puncture success rate, operation time, localization time, puncture time, number of first valid localization phases obtained, number of exposures, and complications of different biopsy methods between 2 groups. Results:In the wire positioning biopy, the puncture success rate was 100% (33/33) in DBT-guided group and 96% (48/50) in the stereotactic-guided group, with no statistically significant difference between the two groups ( P=0.515). Compared to the stereotactic-guided group, the operation time and localization time were shorter, and the number of first valid localization phases obtained, number of exposures were fewer in the DBT-guided group( P<0.05). The incidence of complications was lower in both the DBT-guided group and the stereotactic-guided group, with no statistically significant difference ( P=0.871). In CNB, both the DBT-guided group and the stereotactic-guided group had higher puncture success rates, with no statistically significant difference ( P=0.080). Compared to the stereotactic-guided group, the operation time, localization time and puncture time were shorter, and the number of first valid localization phases obtained, number of exposures were lower in the DBT-guided group, and the difference between the two groups were statistically significant ( P<0.05). The incidence of complications was lower in both the DBT-guided group and the stereotactic-guided group, with no statistically significant difference ( P=0.627). Twenty-one cases received DBT-guided VABB, with an operation time of (19.90±3.38) min, a localization time of 6.00 (6.00, 7.00) min, a puncture time of (13.42±3.28) min, the number of first effective localization phases obtained was 1.00 (1.00, 1.00) time, the number of exposures was 4.00 (3.50, 5.00) times, and one case experienced severe pain after puncture. Conclusion:Compared with stereotactic-guided biopsy, DBT-guided biopsy can reduce operation time and exposure times, and can target more types of breast lesions, with higher clinical application value.

Objective:To explore whether acute pancreatitis, chronic pancreatitis and alcoholic pancreatitis are related to the incidence of pancreatic cancer in Mendelian randomization study.Methods:Using data from a genome-wide association study (GWAS) of European ancestry, the pancreatic cancer data in the UK population is obtained from the GWAS. Acute, chronic, and alcoholic pancreatitis data in the Finnish population is obtained from the Finnish database version R10. The correlation between acute, chro-nic pancreatitis, alcoholic pancreatitis and pancreatic cancer was analyzed by two-sample Mendelian randomization through five Mendelian analysis methods mainly based on inverse variance weighting. Q heterogeneity test, pleiotropy test and reverse test were carried out to ensure the robustness of the results.Results:Chronic pancreatitis was positively associated with pancreatic cancer ( OR=1.332, 95% CI: 1.044-1.698, P=0.021). The results of Q heterogeneity test, pleiotropy test and reverse Mendelian randomization showed that the conclusions were reliability, all P>0.05. While acute pancreatitis ( P=0.953), acute alcoholic pancreatitis ( P=0.862) and chronic alcoholic pancreatitis ( P=0.682) were not significantly associated with pancreatic cancer. Conclusion:This study further confirmed the strong correlation between chronic pancreatitis and pancreatic cancer at the genetic level.

Objective To systematically evaluate the qualitative research on the experience and feeling of elderly patients with hip fracture during rehabilitation.Methods We searched databases including the PubMed,Embase,Web of Science,Cochrane Library,CNAIHL,CNKI,Wanfang,VIP,SinoMed.The literature of qualitative research on the exercise rehabilitation experience of stroke patients from the establishment of the database to August 17,2023 was retrieved.Results A total of 59 clear research topics were extracted,and 14 new categories were formed after induction and integration,which were finally merged into 5 integrated results.Integration results 1:Perceived benefits of exercise rehabilitation.Integration results 2:Multiple driving forces of exercise rehabilitation.Integration results 3:Gradual loss of patience in long-term rehabilitation.Integrated results 4:Generating new rehabilitation needs and actively coping with them.Integrated results 5:There are many difficulties in carrying out self-rehabilitation.Conclusion During the process of exercise rehabilitation for stroke patients,medical personnel should pay attention to the patients'actual feelings,inner needs,and the practical challenges they face in participating in exercise rehabilitation.Personalized exercise rehabilitation facilitation strategies should be developed for stroke patients,aiming for the scientific and precise advancement of exercise rehabilitation,and ultimately improving long-term rehabilitation outcomes for patients.

Objective To analyze and explicate the conceptual connotations of exercise rehabilitation preferences in stroke patients. Methods A systematic search was conducted across multiple databases including the China National Knowledge Infrastructure (CNKI), the Wanfang Data Knowledge Service Platform, the Chinese Biomedical Literature Database, PubMed, Web of Science, Embase, and CINAHL, with the search period extending from inception to October 2022. In accordance with inclusion and exclusion criteria, eligible literatures were selected, and a comprehensive analysis was performed by Rodgers' evolutionary concept analysis method. Results A total of 34 literatures were included. Exercise rehabilitation preferences for stroke patients encompassed 5 concept attributes: preferences for exercise rehabilitation programs, risk tolerance in rehabilitation, time preferences for engaging in exercises, supervision and support, and confidence and challenges; the antecedents to these preferences included demographic factors, disease-related factors, emotional and psychological factors, external environmental factors, and fatigue; outcomes associated with these preferences included the realization of individualized exercise rehabilitation, improvement in adherence to rehabilitation regimens, increased levels of physical activity, and facilitation of motor function recovery. Conclusion Through the conceptual analysis of exercise rehabilitation preferences in stroke patients, healthcare professionals can better understand its underlying dimensions, thereby enabling more in-depth research and exploration into exercise rehabilitation practices tailored for stroke patients.

Objective To investigate the current status and influencing factors of physical activity (PA) among stroke survivors. Methods A total of 203 stroke survivors were selected as the research subjects using convenient sampling method. General information questionnaire, Stroke Self-efficacy Scale, Perceived Social Support Scale, Modified Rankin Scale, International Physical Activity Questionnaire-Long Form, Fatigue Severity Scale, and European Five-Dimension Health Scale were used for questionnaire survey. Based on the health ecological model, hierarchical multiple linear regression analysis was used to explore the influencing factors of PA among stroke survivors. Results Using metabolic equivalents (MET) to quantify energy expenditure, the weekly PA energy expenditure of 203 stroke survivors was 693.0 (0, 1 386.0) MET. The results of hierarchical multiple linear regression analysis showed that personal traits (stroke staging), behavioral characteristics and psychology (Modified Rankin Scale score, fatigue severity, stroke recovery self-efficacy), and interpersonal networks (perceived social support-friend support dimension) were the main influencing factors of PA among stroke survivors (P < 0.05), which could explain 55.5% of the variation in PA. Conclusion The level of PA among stroke survivors is influenced by multi-dimensional and multi-level complex factors in their health ecosystem, and it is currently at a low level. Healthcare professionals can formulate comprehensive strategies to improve PA among stroke survivors based on the health ecological model, aiming to further enhance the PA level of stroke survivors and promote physical function recovery.